Kev Nkag SiabCov Khoom Siv Hluav Taws Xob Tam Sim NoIb qho tseem ceeb rau kev nyab xeeb hluav taws xob
Hauv lub ntiaj teb kev nyab xeeb hluav taws xob, cov khoom siv hluav taws xob seem (RCBs) ua lub luag haujlwm tseem ceeb hauv kev tiv thaiv tib neeg thiab khoom vaj khoom tsev ntawm kev phom sij ntawm kev ua txhaum hluav taws xob. Cov khoom siv no, feem ntau hu ua cov khoom siv hluav taws xob seem (RCDs) lossis cov khoom siv hluav taws xob seem (RCCBs), yog tsim los ntes cov hluav taws xob tsis sib npaug thiab qhib lub voj voog thaum pom qhov txhaum. Kev nkag siab txog RCBs ua haujlwm li cas thiab vim li cas lawv thiaj tseem ceeb tuaj yeem pab cov tswv tsev thiab cov lag luam kom muaj ib puag ncig hluav taws xob muaj kev nyab xeeb dua.
Lub tshuab hluav taws xob seem tam sim no yog dab tsi?
Lub tshuab hluav taws xob seem yog ib lub cuab yeej hluav taws xob uas saib xyuas qhov tam sim no hauv ib lub voj voog. Nws pheej piv qhov tam sim no uas ntws hauv cov xov hlau uas muaj zog nrog qhov tam sim no rov qab los ntawm cov xov hlau nruab nrab. Hauv qhov xwm txheej ib txwm muaj, cov tam sim no yuav tsum sib npaug. Txawm li cas los xij, yog tias muaj qhov tsis zoo tshwm sim, xws li luv luv lossis ib tus neeg kov cov xov hlau uas muaj zog, qee qhov tam sim no yuav xau mus rau hauv av. Qhov tsis sib npaug no ua rau lub tshuab hluav taws xob seem qhib lub voj voog, tiv thaiv kev raug hluav taws xob lossis hluav taws kub.
Cov cuab yeej hluav taws xob seem ua haujlwm li cas?
Cov cuab yeej hluav taws xob seem ua haujlwm raws li lub hauv paus ntsiab lus ntawm qhov hluav taws xob sib txawv. Muaj lub transformer hauv lub cuab yeej uas hnov qhov hluav taws xob ntws los ntawm cov xov hlau kub thiab cov xov hlau nruab nrab. Yog tias qhov sib txawv ntawm cov hluav taws xob no tshaj qhov txwv tsis pub dhau (feem ntau yog 30 mA kom ntseeg tau tias muaj kev nyab xeeb ntawm tus kheej), lub cuab yeej hluav taws xob seem yuav txiav tawm, txiav lub zog hauv milliseconds. Qhov kev teb sai no yog qhov tseem ceeb los tiv thaiv kev raug mob hnyav lossis kev tuag los ntawm kev raug hluav taws xob.
Hom ntawm cov khoom siv hluav taws xob seem tam sim no
Muaj ntau hom residual current circuit breakers, txhua tus muaj lub hom phiaj tshwj xeeb:
1. Hluav Taws Xob Hloov Pauv: Hom no yog rau cov voj voog uas tsuas yog nqa hluav taws xob hloov pauv (AC). Nws yog hom feem ntau siv rau hauv cov chaw nyob.
2. Hom A: RCB no ntes tau ob qho tib si AC thiab pulsating direct current (DC) faults thiab zoo tagnrho rau cov circuits uas muaj cov khoom siv hluav taws xob, xws li cov khoos phis tawj thiab cov hnub ci inverters.
3. Hom B: Hom B RCBs yog tsim los rau cov voj voog uas tuaj yeem nqa cov hluav taws xob ncaj qha thiab feem ntau yog siv rau hauv kev siv hauv kev lag luam, tshwj xeeb tshaj yog cov uas muaj cov khoom siv hluav taws xob rov ua dua tshiab.
4. Hom F: Hom no muab cov yam ntxwv ntawm Hom A thiab Hom B ua ke, tiv thaiv ob qho tib si AC thiab DC cov dej seem, thiab tsim nyog rau ntau yam kev siv.
Qhov tseem ceeb ntawm cov khoom siv hluav taws xob seem tam sim no
Qhov tseem ceeb ntawm cov khoom siv hluav taws xob seem tsis tuaj yeem hais dhau lawm. Lawv yog qhov tseem ceeb rau kev txhim kho kev nyab xeeb hluav taws xob hauv tsev, chaw ua haujlwm thiab cov tsev pej xeem. Cov khoom siv hluav taws xob seem tiv thaiv lub neej los ntawm kev tiv thaiv hluav taws xob poob siab, tshwj xeeb tshaj yog nyob rau hauv cov chaw muaj dej, xws li chav dej thiab chav ua noj. Lawv kuj pab tiv thaiv hluav taws xob los ntawm cov xov hlau tsis zoo lossis cov khoom siv hluav taws xob.
Kev kuaj xyuas thiab kho RCB tsis tu ncua yog qhov tseem ceeb kom ntseeg tau tias nws muaj kev ntseeg siab. Feem ntau cov chav tsev muaj lub pob sim kom tus neeg siv tuaj yeem kuaj xyuas nws txoj haujlwm. Nws raug pom zoo kom kuaj RCB tsawg kawg ib hlis ib zaug kom ntseeg tau tias nws ua haujlwm zoo.
Hauv kev xaus lus
Xaus lus, cov khoom siv hluav taws xob seem yog ib feem tseem ceeb ntawm cov tshuab hluav taws xob niaj hnub no, muab kev tiv thaiv tseem ceeb tiv thaiv kev phom sij ntawm hluav taws xob. Los ntawm kev nkag siab txog cov khoom siv hluav taws xob seem ua haujlwm li cas thiab lawv ntau hom, cov tib neeg thiab cov lag luam tuaj yeem txiav txim siab tau zoo txog lawv cov kev ntsuas kev nyab xeeb hluav taws xob. Kev nqis peev rau cov khoom siv hluav taws xob seem tsis yog tsuas yog tiv thaiv lub neej xwb, tab sis kuj tiv thaiv cov khoom vaj khoom tsev, ua rau lawv yog ib feem tseem ceeb ntawm txhua qhov kev teeb tsa hluav taws xob.
Lub sijhawm tshaj tawm: Lub Kaum Ob Hlis-13-2024